Ship&#39;s cowl.



v No. 761,620. PATENTED MAY 31, .1904.

, v I G. A. W'ITHERS.

SHIPS GOWL.

APPLICATION FILED MAY 22,1903.

N0 MODEL.

UNITED STATES Patented May 31, 1904] PATENT ()FFICE.

OHARLES A. W T ERS, OF AUGUSTA, GEORGIA, ASSIGNOR T INTERNA- 'llONAL VENTILATOR AND DEFLEOTOR COMPANY, OF WASHINGTON, DISTRIoT OF OOLU BIA, A CORPORATION OF THE DISTRIOT OF LUMBIA.

SHIPSI COWL- SPECIFICATION forming part of Letters Patent No. 761,620, dated May 31, 1904.

Application filed May 22, 1903. Serial No. 158,366. (No model.)

To ctZZ whom it may cancer-m.

Be it known that I, CHARLES A. WITHERS, a citizen of the United States, residing at Augusta, in the county of Richmond and State of lowing is a specification.

. ward current of air may be created in the conduit or conduits leading from the various apartments in the vessel through which the foul, vitiated, and heated air within the vessel may be withdrawn.

Theusual method of ventilating ships is to provide a series of funnel-mouthed cowls projecting above the deck and communicating with passages or conduits which lead down into the various apartments Within the vessel. The mouths of these cowls are directed toward the wind or toward the bow of the vessel, so that the draft or current of air is forced down intothe vessel beneath the deck. An objection has arisen, however, to this method of ventilating in that while it provides for the introduction of fresh air it does not provide for the positive withdrawal of the foul or Vitiated air. This objection is overcome by the new and improved construction of ships cowl to be hereinafter referred to and which when set up is adapted to have its mouth directed in an opposite direction to the wind and surrounding the mouth of thecowl with a collar which, in connection With the cowl, forms an air-passage, the collar being so constructed and arranged as to have its forward end extend toward the bow of the vessel and its rear end toward the stern of the vessel and project overthe mouth. of the cowl, the collar being a flaring one or in the form-of a truncated cone, so that the walls of the air-passage will be tapering and the inner end of the air-passage contracted. By this arrangement during the movement of the vessel a current of air will be forced through the air-passage formed by the collar and cowl and be directed across the mouth of the cowl, which action induces a current of air upwardly through the cowl, with the result that an upward draft is produced through the cowl which withdraws the foul, Vitiated, or heated air from the apartment or apartments withwhich and an outtake of air, and comparatively in expensive to manufacture.

With the foregoing and other objects in View the invention consists of the-novel combination and arrangement of parts hereinafter more specifically described, illustrated in the accompanying drawings, and particularly pointed out in the claims hereunto appended.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, wherein like reference characters denote corresponding parts throughout the several views, and

in which Figure 1 is a vertical Sectional view of my improved ships cowl; Fig. 2, a rear elevation;

Fig. 3, a vertical section of a modified form,

and Fig. 4 a'detail of the deflector.

vOn the upper end of each of the pipes or conduits 1 which lead down to and communicate with the various apartments within-the vessel is adapted to be located a cowl 2, constructed in-accordance with this invention.

Thecowl 2 is constructed with a cylindricallower end 3 to permit of the attachment to the pipe or conduit 1 and the enlarging upper section 4:, which forms the elliptical-shaped mouth 5 of the cowl, the upper Section 4 of the cowl being of the ordinary construction; Surrounding the upper end of the section 4:

of the cowl is a collar 6 substantially in the form of a truncated cone, and the collar 6 is connected to the section 4 by means of the short connecting-rods 7 Two or more of these rods may be employed, if desired; but for example three are shown. The upper portion of the collar 6 is of greater width than the lower portion and gradually increases in width from its lower portion to its upper portion. The collar 6 projects inwardly at an inclination and the upper portion thereof extends at a greater inclination than the lower portion. The upper portion of the collar projects over and away from the mouth of the upper section 4. The collar 6, in connection with the section L, forms an air-passage 8, and owing to the inward inclination of the collar 6 the outlet end of the passage 8 is contracted. Owing to the inward inclination of the collar 6 the air is deflected across the mouth of the cowl, so that such action induces a current of air upwardly through the conduit 1 and the cowl, with the result that an upward draft is produced through the conduit 1 and cowl 2, which withdraws the foul, vitiated, or heated air from the apartment or apartments with which the conduit 1 communicates. The position of the cowl 2 when set up to obtain the operation just specified is that the mouth thereof is directed away from the wind, so that a draft or current of air will be forced through the air-passage formed by the collar 6 and the section 4 and be discharged at the contracted inner or outer end of the passage.

In the modified form of cowl shown in Fig. 3 the construction of the upper portion of the cowl is the same as that shown in Figs. 1 and 2, the same reference characters being applied thereto, and it is thought unnecessary to refer to these parts again. The difference which exists between the modified form shown in Fig. 3 and the construction shown by Figs. 1 and 2 is that the cylindrical portion 3 of the cowl is provided with an opening 9, with which communicates an air-passage formed by the funnel 10, which is secured to the cylindrical portion 3 of the cowl around the opening 9. Within the cylindrical portion 3 of the cowl is arranged a diamond-shaped deflector 11 in suitable relation to the opening 9, so that as the air enters the cylindrical portion of the cowl through the opening 9 it will be deflected upwardly by the diamond-shaped deflector 11 and will induce a current of air upwardly through the cowl, with the result that it will assist in producing the updraft through the conduit 1, which withdraws the foul, vitiated, or heated air from the apartment or apartments with which the conduit 1 communicates.

It is thought th e m an y ad vantages of m y im proved ships cowl can be readily understood from the foregoing description, taken in connection with the accompanying drawings, and it will, furthermore, be evident that changes, variations, and modifications can be resorted to without departing from the spirit of the invention or sacrificing any of its advantages, and I therefore do not wish to restrict myself to the details of construction hereinbeforedescribed and as shown in the accompanying drawings, but reserve the right to make such changes, variations, and modifications as come properly within the scope of the protection prayed.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A ships cowl comprisingan upper section forming a mouth portion, and a collar surrounding and connected to the upper end of said upper section, said collar gradually increasing in width upwardly, said collar projectinginwardly at an inclination, the inclination of the upper portion of the collar being greater than the lower portion, the upper portion of the said collar projecting over the mouth of said upper section, said collar further projecting away from the mouth of said upper section and said collar in connection with said upper section forming an air-passage for deflecting the air across the mouth of said upper section.

2. A ships cowl comprising an upper section forming a mouth portion, a collar surrounding and connected to the upper end of said upper section, said collar gradually increasing in width upwardly, said collar projecting inwardly at an inclination, the inclination of the upper portion of the collar being greater than the lower portion, the upper portion of the said collar projecting over the mouth of said upper section, said collar further projecting away from the mouth of said upper section and said collar in connection with said upper section forming an air-passage for deflecting the air across the mouth of said upper section, and a plurality of short rods secured to the upper section near the upper end thereof and through the inner face of the collar near one end thereof, said rods ad apted to connect the collar to the upper section.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES A. WLTHERS. Witnesses:

N. LOUIS BOGAN, GEO. W. REA. 

